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  1. #1
    MONKEYMAN
    Reputation: finger51's Avatar
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    Another BB7 problem- adapter rubs the rotor

    Another BB7 problem-

    Frame is a voodoo bokor with sliding dropouts, hub is a Phil K.I.S.S. .

    With the wheel mounted in the drops I try to place the adapter and caliper over the rotor. I cannot get the caliper/adapter to fit because the rotor seems to be too close to the disc mount on the frame. The adapter hits the rotor- preventing the adapter from bolting to the frame. Here's some pics:

    <img src="https://lh5.googleusercontent.com/-NpJkcaLdE6M/TiR8l1Z5h_I/AAAAAAAAJ2E/FyTgIvxyVGk/s400/IMG_4977.JPG">

    <img src="https://lh6.googleusercontent.com/-vcs0DtunEpU/TiR8qE6JtjI/AAAAAAAAJ4k/sM8KqNSuIPw/s400/IMG_4975.JPG">

    <img src="https://lh3.googleusercontent.com/-sdrHhBx5mxM/TiR9Ih-c1mI/AAAAAAAAJ2Q/Con6NJoy7zE/s400/IMG_4974.JPG">


    I've pulled the slider off and verified that it is totally flat- seems to be fine. The drop out and stays don't seem to be bent, the bike rides straight. I contacted Phil Wood and have verified that the correct spacers are on the correct sides for the hub. Measures out to exactly 135mm.

    I've installed BB7s on a bunch of bikes before and have never seen this. What am I doing wrong?
    Last edited by finger51; 08-02-2011 at 03:19 PM.
    “I don't like jail, they got the wrong kind of bars in there”

  2. #2
    mtbr member
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    I do not know if it matters too much but your bracket appears to be on backwards. I believe the arrow should point to the front/direction of rotation.

  3. #3
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    I agree with Tripower, flip the adapter around and remount the brake. the writing should be on the inside facing the rotor with the arrow pointed towards the seat post.

  4. #4
    Nouveau Retrogrouch SuperModerator
    Reputation: shiggy's Avatar
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    Quote Originally Posted by Tripower View Post
    I do not know if it matters too much but your bracket appears to be on backwards. I believe the arrow should point to the front/direction of rotation.
    Yup, the bracket is on backwards. The arrow is the direction of rotation.
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  5. #5
    MONKEYMAN
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    Quote Originally Posted by Tripower View Post
    I do not know if it matters too much but your bracket appears to be on backwards. I believe the arrow should point to the front/direction of rotation.
    hi~
    yea flipping it didn't do much- the thickness of the adapter is the same on both ends. I ended up getting my file and dremel to the tab side of the adapter. Took about 2mm out where the tab bolts on. ghetto but now working.
    “I don't like jail, they got the wrong kind of bars in there”

  6. #6
    Class Clown
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    not ghetto, just custom!

  7. #7
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    Its pretty fair to say that the only non-standard part there is the adapter to make the frame disc compatible. This is the issue which is causing the standard mounts to be out of place. This needs to be shaved down/remade/machined.....whatever, so that the adapter sits away from the rotor.
    Rimmer - "There's an old human saying - if you talk garbage, expect pain"

  8. #8
    agu
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    is that a 160 or 140mm rear rotor?

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